Stockholm: Stockholm club AIK have been fined by the Swedish football federation for paying an agent during the transfer of teenager Alexander Isak to Borussia Dortmund.
AIK have been ordered to pay 350,000 crowns (36,000 euros) following the transfer of the 17-year-old rising star of Swedish football to the German club in January.
The club protested that world football governing body FIFA -- which approved the transfer -- failed to spot the payment.
FIFA transfer rules prohibit players and clubs from making payments to agents for under-age players.
"Our experience of selling under-age players internationally is very limited and we trusted ... We'll know better next time," the club said in a statement.
Forward Isak, who turns 18 in September, has already won two caps for Sweden, scoring one goal. He has played just a few minutes with the Dortmund first team in the German Cup.
